﻿/************************************************************************

   Extended Silverlight Toolkit

   Copyright (C) 2010-2012 Xceed Software Inc.

   This program is provided to you under the terms of the Microsoft Public
   License (Ms-PL) as published at http://extendedsilverlight.codeplex.com/license

   Please purchase a commercial version of this toolkit if you are using
   it in a commercial product. The commercial versions support the project,
   and also include more features for each control, priority support,
   source code, updates, removed watermark, and a proprietary license.

   Visit http://xceed.com and follow @datagrid on Twitter.

  **********************************************************************/

using System.Diagnostics;

namespace Xceed.Silverlight.Data
{
  public sealed class FilterExpressionPreProcessorResult
  {
    #region Static Fields

    internal static readonly FilterExpressionPreProcessorResult TargetAll = new FilterExpressionPreProcessorResult( PreProcessResult.TargetAll );
    internal static readonly FilterExpressionPreProcessorResult TargetNone = new FilterExpressionPreProcessorResult( PreProcessResult.TargetNone );

    #endregion

    #region Constructors

    internal FilterExpressionPreProcessorResult( FilterExpressionBase expression )
    {
      this.Expression = expression;
      this.Target = PreProcessResult.TargetSome;
    }

    private FilterExpressionPreProcessorResult( PreProcessResult result )
    {
      Debug.Assert( ( result == PreProcessResult.TargetAll )
                 || ( result == PreProcessResult.TargetNone ) );

      this.Target = result;
    }

    #endregion

    #region Expression Property

    public FilterExpressionBase Expression
    {
      get;
      private set;
    }

    #endregion

    #region Target Property

    public PreProcessResult Target
    {
      get;
      private set;
    }

    #endregion
  }
}
